An extra disc that contains a digital file of the movie (not in HD) that can be downloaded to your computer or portable media device (such as an iPod).

Advantages of Blu-ray Disc:

The main attraction to the Blu-ray Disc is that it presents both the movie and the extras in High Definition. A Blu-ray Disc can store five times as much information as a DVD, and this results in far superior video and audio quality.

The Prince Caspian Blu-ray Disc includes two features that are not on the DVD: ‘Circle-vision’ and ‘BD-Live.’ Thirteen 2-6 minute behind-the-scenes videos are accessible through the BD-Live feature:

NOTE: In order to experience a movie in High Definition, you must have all of the following:
1) A Blu-ray Disc player or PlayStation 3
2) An HDMI or component cable
3) A High-Definition television
4) The movie on Blu-ray Disc